CN106283278B - A method of corium fabric is extracted using waste and old finished leather - Google Patents
A method of corium fabric is extracted using waste and old finished leather Download PDFInfo
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- CN106283278B CN106283278B CN201610746601.6A CN201610746601A CN106283278B CN 106283278 B CN106283278 B CN 106283278B CN 201610746601 A CN201610746601 A CN 201610746601A CN 106283278 B CN106283278 B CN 106283278B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/66—Disintegrating fibre-containing textile articles to obtain fibres for re-use
Abstract
The present invention relates to the production methods of emulational leather fibrous raw material, a kind of method for extracting corium fabric using waste and old finished leather is provided, this method recycles Leather Waste, improve the utilization rate of resource, production technology is improved simultaneously, it can also be saved in the case where reaching the quality of finished product using standard largely with water electricity consumption, promote effects of energy saving and emission reduction prominent.A method of corium fabric is extracted using waste and old finished leather, comprising the following steps: (1) leftover pieces is ground into particle powder using leather pulverizer, makes 2~4mm of grain diameter；(2) particle powder is put into rotary drum and carries out dyeing processing；(3) using that will be dyed by formula drying press, treated that particle powder is dehydrated；(4) dewatered particle powder is subjected to feather plucking processing using unhairing machine.At copolymer of fiber suede.
Description
Technical field
The present invention relates to the production methods of emulational leather fibrous raw material more particularly to a kind of waste and old finished leather of utilization to extract
The method of corium fabric.
Background technique
Leather produced in kind and inevitably generates a large amount of leftover pieces, can not normally make since leftover pieces specification is small
With, it is one of unavoidable cost of leather manufacturing enterprise, it is usually directly discarded, produce the waste problem of resource；Due to
Leather leftover pieces are to have already passed through that the main tan of heavy metal chromium is processed, and either leftover pieces or retanning are waste and old skin after finished product
Leather arbitrarily abandons the problem of also bringing pollution environment, therefore the discarded leather leftover pieces of processing also become the trouble of manufacturing enterprise.
Therefore, recycling Leather Waste and the leftover pieces of production is to solve the problems, such as one of this method, in the prior art,
Usually these Leather Wastes are recycled into the bottom raw material for being used to make regeneration leather base cloth, PU leather or synthetic leather, that is,
Copolymer of fiber suede, also referred to as ox-hide suede；Its method for manufacturing be include: Leather Waste pulverization process first by collection, then will crush
Villus is then carried out dyeing processing at villiform by pieces of leather feather plucking afterwards, is dehydrated, is dried later, finally also to be carried out again primary
Feather plucking makes to unfold through the processed fiber fluffy of solution, reaches the raw fibre suede that could become preparation, regeneration leather using standard, should
To tentatively dyeing as villous leather fiber preferable dyeing quality can be obtained, but due to villus matter in production method
Gently, it needs to impregnate using a large amount of water in dyeing and cover, be dehydrated later, it is larger to the usage amount of water, make one ton of leather fiber
About 20-25 tons of water consumption, will also pass through second of feather plucking, can be further worn out fiber cause generate flying dust, influence cellulosic
Sense, shortening fibre length keeps manufactured emulational leather second-rate, workshop air can be also polluted, in addition, the consumption of feather plucking electric energy
Also production cost is greatly improved.
Summary of the invention
Therefore, for the above content, the present invention provides a kind of method for extracting corium fabric using waste and old finished leather, should
Method recycles Leather Waste, improves the utilization rate of resource, while improving production technology, reaches in the quality for making finished product and answer
With that can also save in the case where standard largely with water electricity consumptions, promote effects of energy saving and emission reduction prominent.
In order to achieve the above objectives, the present invention is achieved by the following technical solutions:
A method of corium fabric is extracted using waste and old finished leather, comprising the following steps:
(1) leftover pieces are ground into particle powder using leather pulverizer, make 2~4mm of grain diameter；
(2) particle powder is put into rotary drum and carries out dyeing processing；
(3) using that will be dyed by formula drying press, treated that particle powder is dehydrated；
(4) dewatered particle powder progress feather plucking is processed into copolymer of fiber suede using unhairing machine.
Further, wherein (2) are specifically the step of particle powder is carried out dyeing processing: I, softening expands: by particle
Powder and water are put into rotary drum by the weight ratio of 1:3~3.5 and impregnate 50~70min, make particle powder softening expansion；II, it dyes: a.
Based on the parts by weight of particle powder, be added particle powder weight 3~6% sodium bicarbonate, 5~8% sodium formates, recall PH be 3.5~
6.5, impregnate 1.6~2.3h；B. 1~3% penetrating agent JFC is added, intermittent stirring places 0.4~0.6h；1~3% ammonium hydroxide is added,
0.8~1.2h is impregnated after stirring；C. 4~8% coloring agent is added in three times in 8~10.5h, and intermittent stirring is placed；D. plus
Enter 3~7% synthetic oils, intermittent stirring places 2~3.5h；2~3% color fixing agent are added, intermittent stirring places 1~3h.
Further, wherein the Adding Way of c. coloring agent is in the step of particle powder is carried out dyeing processing by (2),
1~3% coloring agent is first added, intermittent stirring places 5~6h, adds 2~3% coloring agent, and intermittent stirring places 2~3h
Afterwards, water temperature is warming up to 50~60 DEG C, 1~2% coloring agent is added, intermittent stirring places 1~1.5h.
Further, wherein in the step of particle powder is carried out dyeing processing by (2): II, dye: a. is by particle powder
4% sodium bicarbonate, 6% sodium formate is added in parts by weight meter, impregnates 2h；B. 1% penetrating agent JFC is added, intermittent stirring places 0.5h；It is added
1.5% ammonium hydroxide impregnates 1h after stirring；C. the Adding Way of coloring agent is that 2% coloring agent is first added, and intermittent stirring is placed
5.5h adds 1.5% coloring agent and water temperature is warming up to 55 DEG C, 1% coloring agent is added after intermittent stirring places 2.5h,
1h is placed in stirring of having a rest；D. 5% synthetic oil is added, intermittent stirring places 3h；2% color fixing agent is added, intermittent stirring places 3h.
Further, in the step of particle powder is dehydrated wherein (3) will dye that treated, particle contains after dehydration
Water rate is 50~60%.
Further, wherein in the step of dewatered particle powder is carried out feather plucking processing by (4), temperature during feather plucking
Degree be 150~160 DEG C, after the completion of feather plucking when output fiber suede using cold wind carry out it is air-cooled.
Further, wherein in the step of leftover pieces are ground into particle powder by (1), the partial size of particle powder is 3mm.
Further, wherein (2) may also is that I, be equipped with staining solution the step of particle powder is carried out dyeing processing:
Based on the parts by weight of particle powder, solution is equipped with the water of 3~3.5 times of particle powders first, 3~6% sodium bicarbonate, 5~8% are added
1~3% penetrating agent JFC is added in sodium formate, and 1~3% ammonium hydroxide is added, is eventually adding 2~3% coloring agents and is equipped to staining solution；
II, dye: a, the particle powder that 1 parts by weight are added in staining solution, intermittent stirring place 2~4h；Later by 2~3% dye
Toner is added in two portions in 2~4h；B, 3~7% synthetic oils are added, intermittent stirring places 2~3.5h；C, 2~3% fixation are added
Agent, intermittent stirring place 1-3h.
Further, the step of particle powder is carried out dyeing processing by (2) described in leading portion is: I, being equipped with staining solution: pressing
The parts by weight meter of particle powder is equipped with solution first with the water of 3 parts by weight, and 4% sodium bicarbonate, 6% sodium formate is added, and is added 1.5% and seeps
Saturating agent JFC, is added 1.5% ammonium hydroxide, 2% coloring agent is added later and is equipped to staining solution；II, it dyes: a, in staining solution
The particle powder of 1 parts by weight is added, intermittent stirring places 4h；1% coloring agent is added, intermittent stirring places 3h, by staining solution
55 are warming up to, 1% coloring agent is added, intermittent stirring places 2h, 5% synthetic oil b, is added, intermittent stirring places 3h；C, it is solid to be added 1%
Toner, intermittent stirring place 2h.
By using preceding solution, the beneficial effects of the present invention are: after preparation method of the invention will directly crush
Leather dyed, a feather plucking has lacked a feather plucking step, therefore fiber in technique at fibrous finished product, compared with the prior art
Surface does not generate flying dust, and glossiness is good, does not pollute air；In dyeing processing, particle directly contaminates method and more first breaks into fiber to be contaminated again
Method not easy coloring, thoroughly, therefore, adjusted using PH and penetrating agent JFC soften particle, expand, contaminated in particle by several times
The heart, middle part finally make the coloring effect of particle reach the degree no less than stock-dye method until outer surface, can than feather plucking after stain
Dyestuff is further saved, finally, being handled with higher temperature, moisture rapid evaporation, obtained fibre weight in feather plucking processing
Height, fibre length is long, and availability is higher, manufactured emulational leather better quality, can finally be taken steam, be made in time with cold wind
Adhesion between fiber disengages, fiber more Gabon pine, obtains high quality fibers villus, and preparation method provided by the invention is going out
It produces in equivalent fiber, 3~5 tons is only needed with water, water consumption is greatly saved in 20~25 tons compared with the prior art, in energy-saving and emission-reduction
It is upper that there is significant benefit.In addition, fiber prepared by the present invention can be made into the ox with skin emulation effect by weaving or nonwoven
Suede, or yarn is made.
Specific embodiment
Carry out the embodiment that the present invention will be described in detail below with reference to specific embodiment, how skill is applied to the present invention whereby
Art means solve technical problem, and the realization process for reaching technical effect can fully understand and implement.
Unless otherwise specified, the conventional hand that technological means employed in embodiment is well known to those skilled in the art
Section, used reagent and product are also available commercial.The source of agents useful for same, trade name and it is necessary to list it
Constituent person is indicated on the first occurrence.
The embodiment of the present invention one:
A method of corium fabric is extracted using waste and old finished leather, comprising the following steps:
Step (1) crushes Leather Waste leftover pieces for particle powder, grain diameter 3mm；
Particle powder is carried out dyeing processing by step (2)；I, particle powder and water softening expansion: are pressed to the weight ratio of 1:3
It is put into rotary drum and impregnates 1h, make particle powder softening expansion；II, dye: particle powder is added based on the parts by weight of particle powder in a.
The sodium bicarbonate of 4% weight, 6% sodium formate, recalling PH is 5~6, impregnates 2h；B. 1% penetrating agent JFC is added, intermittent stirring places 0.5h；
1.5% ammonium hydroxide is added, impregnates 1h after stirring；C. 2% coloring agent is first added, intermittent stirring places 5.5h, adds 1.5%
Water temperature is warming up to 55 DEG C after intermittent stirring places 2.5h by coloring agent, and 1% coloring agent is added, and intermittent stirring places 1h；D. plus
Enter 5% synthetic oil, intermittent stirring places 3h；2% color fixing agent is added, intermittent stirring places 3h.
Step (3), will be in dyeing treated the step of particle powder is dehydrated, and the moisture content of particle is after dehydration
55%。
Dewatered particle powder is carried out feather plucking processing by step (4), (4), and the temperature during feather plucking is 155
DEG C, it carries out air-cooled using cold wind when output fiber suede after the completion of feather plucking, obtains finished fiber suede.
Embodiment two:
A method of corium fabric is extracted using waste and old finished leather, comprising the following steps:
Step (1) crushes Leather Waste leftover pieces for particle powder, grain diameter 2mm；
Particle powder is carried out dyeing processing by step (2)；I, particle powder and water softening expansion: are pressed to the weight of 1:3.5
1.2h is impregnated than being put into rotary drum, makes particle powder softening expansion；II, dye: particle is added based on the parts by weight of particle powder in a.
Sodium bicarbonate, 6% sodium formate of 3% weight of powder impregnate 1.6h；B. 1% penetrating agent JFC is added, intermittent stirring places 0.4h；It is added 1%
Ammonium hydroxide, impregnate 0.8h after stirring；C. 1.5% coloring agent is first added, intermittent stirring places 3.5h, adds 1% coloring agent,
After intermittent stirring places 2h, water temperature is warming up to 55 DEG C, 1% coloring agent is added, intermittent stirring places 1h；D. 3% synthesis is added
Oil, intermittent stirring place 2h；1.5% color fixing agent is added, intermittent stirring places 2h.
Step (3), will be in dyeing treated the step of particle powder is dehydrated, and the moisture content of particle is after dehydration
45%。
Dewatered particle powder is carried out feather plucking processing by step (4), (4), and the temperature during feather plucking is 150
DEG C, after the completion of feather plucking when output fiber suede using cold wind carry out it is air-cooled.
Embodiment three
A method of corium fabric is extracted using waste and old finished leather, comprising the following steps:
Leftover pieces are ground into particle powder, grain diameter 3mm by step (1)；
Particle powder is carried out dyeing processing by step (2): I, being equipped with staining solution: first based on the parts by weight of particle powder
Solution is first equipped with the water of 3 times of particle powder weight, sodium bicarbonate, 6% sodium formate of 4% weight of particle powder is added, recalling PH is 6,
1.5% penetrating agent JFC is added, 1.5% ammonium hydroxide is added, 2% coloring agent is added later and is equipped to staining solution；II, dye: a,
The particle powder of 1 parts by weight is added in staining solution, intermittent stirring places 4h；1% coloring agent is added, intermittent stirring places 3h,
Staining solution is warming up to 55,1% coloring agent is added, intermittent stirring places 2h, 5% synthetic oil b, is added, intermittent stirring places 3h；
C, 1% color fixing agent is added, intermittent stirring places 2h；
Step (3), will dyeing treated that particle powder is dehydrated；The moisture content of particle is 60% after dehydration.
Dewatered particle powder progress feather plucking is processed into copolymer of fiber suede by step (4)；Temperature during feather plucking is 150
DEG C, after the completion of feather plucking when output fiber suede using cold wind carry out it is air-cooled.
In the various embodiments described above, Leather Waste preferentially selects the leather after sub-sieve for black, and coloring agent preferentially selects " leather
Black 210 ", black leathers dyeing effect processed is good, dosage is few, cost is minimum, and wherein ammonium hydroxide is the aqueous solution containing ammonia 25%~28%,
Middle penetrating agent JFC also can be used JFC-1, JFC-2 to substitute, and wherein color fixing agent uses cationic quaternary, such as: hexadecyl
Pyridine, brocide.Above-mentioned materials are that can be commercially available product on the market.
The foregoing descriptions are merely the embodiment using this origination techniques content, any those skilled in the art use this wound
Make done modifications and changes, all belong to the scope of the patents of this creation opinion, and is not limited to those disclosed embodiments.
Claims (6)
1. a kind of method for extracting corium fabric using waste and old finished leather, comprising the following steps: (1) be ground into leftover pieces
Grain powder, granule partial size is 2~4mm；(2) particle powder is subjected to dyeing processing；(3) will dyeing treated particle powder into
Row dehydration；(4) dewatered particle powder progress feather plucking is processed into copolymer of fiber suede；It is characterized by: the specific processing of step (2)
Mode is: I, softening expansion: particle powder and water being put into rotary drum by the weight ratio of 1:3~3.5 and impregnate 50~70min, is made
Grain powder softening expansion；II, dye: a. is based on the parts by weight of particle powder, 3~6% sodium bicarbonate of addition particle powder weight, 5
~8% sodium formate, recalling PH is 3.5~6.5, impregnates 1.6~2.3h；B. 1~3% penetrating agent JFC is added, intermittent stirring is placed
0.4~0.6h；1~3% ammonium hydroxide is added, 0.8~1.2h is impregnated after stirring；C. 4 are then added in three times in 8~10.5h
~8% coloring agent, and intermittent stirring is placed；D. 3~7% synthetic oils are added, intermittent stirring places 2~3.5h；Addition 2~
3% color fixing agent, intermittent stirring place 1~3h.
2. the method according to claim 1 for extracting corium fabric using waste and old finished leather, it is characterised in that: step
(2) in, the Adding Way of c. coloring agent is, 1~3% coloring agent is first added, and intermittent stirring places 5~6h, add 2~
Water temperature after intermittent stirring places 2~3h, is warming up to 50~60 DEG C, 1~2% coloring agent, interval is added by 3% coloring agent
1~1.5h is placed in stirring.
3. the method according to claim 1 for extracting corium fabric using waste and old finished leather, it is characterised in that: step
(2) in: II, dye: 4% sodium bicarbonate, 6% sodium formate of particle powder weight is added based on the parts by weight of particle powder in a., impregnates
2h；B. 1% penetrating agent JFC is added, intermittent stirring places 0.5h；1.5% ammonium hydroxide is added, impregnates 1h after stirring；C. coloring agent
Adding Way be, first be added 2% coloring agent, intermittent stirring place 5.5h, add 1.5% coloring agent, intermittent stirring
After placing 2.5h, water temperature is warming up to 55 DEG C, 1% coloring agent is added, intermittent stirring places 1h；D. 5% synthetic oil is added,
3h is placed in stirring of having a rest；2% color fixing agent is added, intermittent stirring places 3h.
4. the method for extracting corium fabric using waste and old finished leather described in any claim according to claim 1~3,
Be characterized in that: in step (3), the moisture content of particle is 50~60% after dehydration.
5. the method for extracting corium fabric using waste and old finished leather described in any claim according to claim 1~3,
Be characterized in that: in step (4), the temperature during feather plucking is 150~160 DEG C, using cold when output fiber suede after the completion of feather plucking
Wind carries out air-cooled.
6. the method for extracting corium fabric using waste and old finished leather described in any claim according to claim 1~3,
Be characterized in that: in step (1), the grain diameter is 3mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610746601.6A CN106283278B (en) | 2016-08-29 | 2016-08-29 | A method of corium fabric is extracted using waste and old finished leather |
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| CN201610746601.6A CN106283278B (en) | 2016-08-29 | 2016-08-29 | A method of corium fabric is extracted using waste and old finished leather |
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| CN106283278A CN106283278A (en) | 2017-01-04 |
| CN106283278B true CN106283278B (en) | 2018-12-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114953825A (en) * | 2022-05-17 | 2022-08-30 | 兆丰(福建)新材料有限公司 | Method for manufacturing craft picture by utilizing leather leftover material recycling process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1112618A (en) * | 1994-05-23 | 1995-11-29 | 郑铁成 | Producing method for artificial leather |
| CN1632188A (en) * | 2005-02-07 | 2005-06-29 | 苏立暖 | Process for making leather facing fabric suede and products made thereby |
| CN101182589A (en) * | 2007-11-16 | 2008-05-21 | 陕西科技大学 | Method of THP and multi-amino-compounds combining tanning leather |
| CN102586899A (en) * | 2012-03-19 | 2012-07-18 | 山东德信皮业有限公司 | Method for extracting spinnable collagenous fiber from leather corner waste and waste leather |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009037792A1 (en) * | 2009-08-18 | 2011-02-24 | Bader Gmbh & Co. Kg | Process for the production of leather pellets |
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2016
- 2016-08-29 CN CN201610746601.6A patent/CN106283278B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1112618A (en) * | 1994-05-23 | 1995-11-29 | 郑铁成 | Producing method for artificial leather |
| CN1632188A (en) * | 2005-02-07 | 2005-06-29 | 苏立暖 | Process for making leather facing fabric suede and products made thereby |
| CN101182589A (en) * | 2007-11-16 | 2008-05-21 | 陕西科技大学 | Method of THP and multi-amino-compounds combining tanning leather |
| CN102586899A (en) * | 2012-03-19 | 2012-07-18 | 山东德信皮业有限公司 | Method for extracting spinnable collagenous fiber from leather corner waste and waste leather |
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Effective date of registration: 20191211 Address after: 325000 No.11, Jinyuan Avenue, Mayuan Industrial Zone, Shuitou Town, Pingyang County, Wenzhou City, Zhejiang Province Patentee after: Wenzhou Dingyuan Leather Co., Ltd Address before: 362200, Quanzhou, Fujian province Anhai Mu leather area Patentee before: Fujian Yongsheng leather products Co., Ltd. |